var Cookies = {};
/**//**
* 设置Cookies
*/
Cookies.setCookieVal = function(name, value){
	var argv = arguments;
	var argc = arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : '/';
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");
};

 
Cookies.set =function(name,value,time){
	
	var strsec = getsec(time);
	var exp = new Date();
	exp.setTime(exp.getTime() + strsec*1);
	document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();

};

getsec=function(str){
 
    var str1=str.substring(1,str.length)*1; 
    var str2=str.substring(0,1); 
    if (str2=="s"){
    return str1*1000;
    }else if (str2=="h"){
    return str1*60*60*1000;
    }else if (str2=="d"){
    return str1*24*60*60*1000;
    }
};

/**//**
* 读取Cookies
*/
Cookies.get = function(name){
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	var j = 0;
	while(i < clen){
	j = i + alen;
	if (document.cookie.substring(i, j) == arg)
	    return Cookies.getCookieVal(j);
	i = document.cookie.indexOf(" ", i) + 1;
	if(i == 0)
	    break;
	}
	return null;
};
/**//**
* 清除Cookies
*/
Cookies.clear = function(name) {
	if(Cookies.get(name)){
		var expdate = new Date(); 
		expdate.setTime(expdate.getTime() - (86400 * 1000 * 1)); 
		Cookies.set(name, "", expdate); 
     }
};

Cookies.getCookieVal = function(offset){
	var endstr = document.cookie.indexOf(";", offset);
	if(endstr == -1){
	   endstr = document.cookie.length;
	}
    return unescape(document.cookie.substring(offset, endstr));
};